Improvement in sucker-rod elevators



UNITED STATES PATENT LEWIS K. STITTS AND SOLOMON B. DRESSER, PARKERS LANDING, PA.

IMPROVEMENT IN SUCKER-ROD ELEVATORS.

Specification forming partof Letters Patent No. 133,390,6ated November 26, 1872.

To all whom it may concern:

Be it known that we, LEWIS K. STITTS and SoLoMoN E. DRESSER, of Parkers Landing, in the county of Armstrong and State of Pennsylvania, have invented a new and useful 1mprovement in Sucker-Rod Elevator, of which the following is a specification:

This invention relates to the pumping machinery of oil and salt wells; and consists in a device for elevating the sucker or pump rod,

shoulder, B, on two sides, as seen in Fig. 1.

O is the elevator, consisting of a box or frame made in two parts; one part, E, closes onto the other part, F, and opens as agate to allow the sucker-rod to be slipped in and out. G G and H H are pivots or journals formed on the parts E F or passing through them, as seen in Fig. 4. I is a bail attached to the pivots G G. J is a bail, which is attached to the pivots H H. K is a stop-plate on the outside of each of the parts E F. The bail I is simply to serve as a handle to the wrench. The bail J falls back onto the stop-plate K, which is fastened to the gate E of the elevator, so that when the weight of the sucker-rod is removed the weight of the bail will be suflicient to open the gate; hence it is easily removed from the sucker-rod.

In sending the elevator to the swivelman up in the derrick both bails are put onto a hook of the sucker-rod line, leaving the gate of the elevator open, so that the swivelman has nothing to do but to slip the elevator underthe shoulders of the sucker-rod and shut the elevator-gate.

This device saves much valuable time and labor.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- 1. The elevator O, bails I and J, and stop K. when the same are constructed and arranged to operate substantially as and for the purposesdescribed.

2. The combination of the parts E and F, as and forthe purposes described.

3. The stop-plate K, by means of which the gate E is opened, in combination with the bail J, substantially as described.

LEWIS K. STITTS. SOLOMON R. DRESSER.

Witnesses:

GEo. W. 000K, J. R. GoLDsEoRoUeE.

EroE. 

